2131043402131 has 16 divisors (see below), whose sum is σ = 2578832073216. Its totient is φ = 1719100745856.

The previous prime is 2131043402093. The next prime is 2131043402153. The reversal of 2131043402131 is 1312043401312.

It is a cyclic number.

It is not a de Polignac number, because 2131043402131 - 2¹⁵ = 2131043369363 is a prime.

It is a super-2 number, since 2×2131043402131² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2131043402096 and 2131043402105.

It is not an unprimeable number, because it can be changed into a prime (2131043402531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3262120 + ... + 3860506.

It is an arithmetic number, because the mean of its divisors is an integer number (161177004576).

Almost surely, 2^{2131043402131} is an apocalyptic number.

2131043402131 is a deficient number, since it is larger than the sum of its proper divisors (447788671085).

2131043402131 is a wasteful number, since it uses less digits than its factorization.

2131043402131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628338.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 2131043402131 its reverse (1312043401312), we get a palindrome (3443086803443).

The spelling of 2131043402131 in words is "two trillion, one hundred thirty-one billion, forty-three million, four hundred two thousand, one hundred thirty-one".